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20 Terms

1
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1. The study of how living and extinct organisms are related to one another


Phylogeny 

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A branch of biology dealing with embryos and their development

Embryology

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A population whose members can interbreed and produce fertile offspring


Species

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A change in a DNA sequence, usually occurring because of errors in replication or repair


Mutation

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 A structure or organ that has diminished in size or usefulness in the course of evolution

vestigial structures

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 Random changes in gene frequency that is more obvious in smaller populations  but that occurs in all populations


Genetic Drift

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. Inherited from a common ancestor, may have a similar structure but different function

Homologous structures

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 Generally, a group of organisms living close to one another that interbreed with one another and do not breed with other similar groups

Population

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Similar because of convergent evolution, and not because of common ancestry, may have a similar function but a different structure

analogous__structures

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Changes in gene frequency in a population from one generation to the next

Evolution

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 A process in which some individuals have genetically-based traits that improve survival or reproduction and thus have more offspring surviving to reproductive age than other individuals

Natural selection

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The process of changing the characteristics of animals by artificial manual means. a process in which humans consciously select for or against particular features in organisms

Artificial selection

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summarize the 4 main points of Darwin’s theory of Evolution by Natural Selection

Overproduction- When there are too many offspring produced for the limited resources.

Decent of modification - The idea that species evolve over time, changing and branching from a common ancestor; A change in gene frequencies over time.

Adaptation- Features that allow organisms to survive better in their environment.

Variation- Differences in phenotypes between organisms.


14
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List and explain 5 factors that can cause evolution (the 5 fingers of evolution!)


Small population

Selective reproduction

Mutations

Gene flow

Natural selection/adaptation.

15
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. List 5 lines of evidence for evolution. 


Fossils

Vestigial Structures

Biogeograpy

Embrology

Dna


16
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 Explain the importance of transitional fossils, and give an example.

To show the changes over time in a species' bone structure. An example of a transitional fossil is a whale's blowhole moving increasingly up in the skull over time.


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8. Do sharks have bony skeletons?


No


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Do Birds have hair

No

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What are the 8 taxonomy levels in order from LEAST specific to MOST specific?

  Domain,Kingdom,Phylum, Class, Order, Family, Genus, and species.

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What are the 5 Kingdoms? 


Animia,Fungi, Plantae, Protista,Monera.